The present invention relates to methods for monitoring differential expression
of a plurality of genes in a first Bacillus cell relative to expression
of the same genes in one or more second Bacillus cells using microarrays
containing Bacillus genomic sequenced tags. The present invention also relates
to computer readable media and computer-based systems. The present invention further
relates to substrates containing an array of Bacillus licheniformis or Bacillus
clausii GSTs.